Preparation method of catalyst material for reducing CO2 into CO

The invention discloses a preparation method of a catalyst material for reducing carbon dioxide into carbon monoxide. The preparation method comprises the following steps of: uniformly mixing and calcining a metal organic framework FJU-40 and graphene; dissolving the calcined substance, sodium bismuthate dihydrate (NaBiO3. 2H2O), conductive carbon black XC-72R and silver nitrate into water in proportion to prepare a solution; dissolving NaBH4 in water to prepare a solution; and mixing the two solutions, centrifuging and drying to obtain the catalyst material. The catalyst material shows excellent catalytic reduction performance in the aspect of electrocatalytic reduction of CO2 into CO, the problem of high reduction potential is effectively solved, the Faraday efficiency of the product isimproved, and the catalytic reaction product is mainly CO. 本发明公开了一种将二氧化碳还原成一氧化碳的催化剂材料的制备方法。其制备过程包括：将金属有机框架FJU-40和石墨烯均匀混合，煅烧；将煅烧后的物质和二水铋酸钠(NaBiO3·2H2O)、导电炭黑XC-72R和硝酸银按比例溶解在水中，制备成溶液；将NaBH4溶解在水中，制成溶液；将两种溶液进行混合，离心，干燥得到催化剂材料。该催化剂材